The national capital continued to reel under biting cold conditions as a blanket of fog affected visibility and badly hit rail operations with eight trains getting cancelled and 79 running behind schedule.
The maximum temperature was recorded at 17 degrees Celsius, four notches below season's average while the minimum settled two notches below the season's average at 6.3 degrees Celsius.
The visibility was 700 metres at 8.30 AM and peaked to 1400 meters as the day progressed and was 1200 meters at 5.30 PM.
While eight trains were cancelled on Friday, 79 trains got delayed.
Timings of three trains including the Amritsar-Nanded Sachkhand express, Amritsar-New Delhi Express and Jalandhar-New Delhi express were rescheduled, a railway official said.
However, no diversion or cancellation of flights due to fog was reported, according to airport authorities.
The weather department has predicted mainly clear sky for Saturday with moderate to dense fog conditions in the morning. The maximum and minimum temperatures are likely to hover around 17 and 6 degrees respectively.